#include <algorithm>
#include <iostream>
#include <vector>
using namespace std;

class Solution {
 public:
  vector<int> twoSum(vector<int>& nums, int target) {
    int n = nums.size();
    for (int i = 0; i < n - 1; i++) {
      for (int j = i + 1; j < n; j++) {
        if (nums[i] + nums[j] == target) {
          return {i, j};
        }
      }
    }
    return {};
  }
};
